Convergence rate of weak Local Linearization schemes for stochastic differential equations with additive noise

Abstract

There exists a diversity of weak Local Linearization (LL) schemes for the integration of stochastic differential equations with additive noise, which differ with respect to the algorithm that is employed in the numerical implementation of the weak Local Linear discretizations. On the contrary to the Local Linear discretization, the rate of convergence of the LL schemes has not been considered up to now. In this work, a general theorem about this issue is derived and further is applied to a number of specific schemes. As application, the convergence rate of weak LL schemes for equations with jumps is also presented.